Acute left heart failure includes pulmonary edema, and other symptoms, such as chest tightness, shortness of breath, telangiectatic breathing, edema of both lower limbs, and fluid accumulation in the chest and abdominal cavity. There are many causes of acute heart failure, like congenital heart disease, heart valve disease, fulminant myocarditis, all kinds of cardiomyopathy, can lead to acute left heart failure attack, and once the attack, the patient’s symptoms are very obvious, should be given timely cardiac strengthening, diuretic, oxygen and lower limb release, will reduce the heart load, in order to make the patient’s symptoms get faster relief.